Λύπης ἰατρός ἐστιν ὁ χρηστὸς φίλος – A true friend is grief's physician.
-ου, ὁ Bojo persa afincado en Atenas, Agatharch.5, Str.16.4.20.
Perhaps hypc. form of Bagabuxša (see Μεγάβυζος).